.top_header_wrapper {

    height: 46px;

    width: 100%;
    top: 0;
    left: 0;
    position: relative;
    z-index: 10;

    &.bg_red {
        background: #c82727;
    }

    &.bg_black {
        background: #232323;
    }

    .top_header_center {
        position: absolute;
        width: 100%;
        height: 100%;
        z-index: 1;
        .top_header_title {
            width: 100%;
            height: 100%;
            line-height: 46px;
            text-align: center;
            color: #fff;
            font-size: 16px;
        }
    }

    .top_header_left,.top_header_right {
        position: relative;
        z-index: 2;
        height: 100%;
    }

    .top_header_left {
        float: left;
        .top_header_back {
            width: 60px;
            height: 100%;
            background-image: url("./header-back-icon@2x.png");
            background-repeat: no-repeat;
            background-size: 10px 16px;
            background-position: 16px center;
            &:active {
                opacity: .5;
            }
        }
    }

    .top_header_right {
        float: right;
    }

}